If pirq_routing_table points to NULL, that means U-Boot fails to
generate the table before in create_pirq_routing_table(), so we
test it against NULL before actually writing it.
Signed-off-by: Bin Meng <bmeng...@gmail.com>
---
arch/x86/cpu/irq.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/x86/cpu/irq.c b/arch/x86/cpu/irq.c
index 32dc6f2..ce6334b 100644
--- a/arch/x86/cpu/irq.c
+++ b/arch/x86/cpu/irq.c
@@ -217,5 +217,8 @@ void pirq_init(void)
u32 write_pirq_routing_table(u32 addr)
{
+ if (!pirq_routing_table)
+ return addr;
+
return copy_pirq_routing_table(addr, pirq_routing_table);
}
--
1.8.2.1
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